Overview
ST230B Telephone Line Tester
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Feature
◆ Common Telephone: Dial, Talk, Redial, Mute, T/P switch
◆ Fault Testing: Insulation, Break, Grounding
◆ Call & Talk
◆ Telephone Testing
◆ Monitoring
◆ Telecom Line Identifying (Telephone line, ISDN line, ADSL line)
◆ Dumbbellshape, small size, simple operation
◆ Special low pass avoiding influencing communication
◆ Rechargeable NI-MH battery
◆ Dangerous voltage alarm
◆ High DC Voltage protection
◆ Against water, shake & fall
Specifications
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Insulation impedance test, Rang
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0~10MΩ
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Ring distance
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≤1Km
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Open resolution distance
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≤3Km
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High resistance monitoring, Resistance
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≥1MΩ
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Index and Standard
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GB/T15279-2002
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Telecom line identifying distance
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≤5km
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Battery
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Rechargeable 9V NI-MH battery
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Dimension（mm）
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232×73×95
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Weight（kg）
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0.5
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